Diarrhea can be caused by a variety of antibiotics, including Augmentin. Changing the antibiotic can be considered if it continues.
I would also send it for analysis, including testing for C. Difficile - a bacteria that is associated with antibiotic use.
These options can be discussed with your personal physician.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Kevin Pho, M.D.
www.kevinmd.com
www.twitter.com/kevinmd